Pneumatic spraying device



Oct. 14. 1924. 1,511,361

J. A. PAASCHE PNEUMATIC SPRAYING DEVICE Original Filed June 2, 1919 -2 Sheets-Sheet. l

Oct. 14 1924. Lfiifififil J. A. PAASCHE PNEUMATIC SPRAYING DEVICE Original Filed June 2, 1919 2 Sheeis-Sheei 2 rlllfllllfllllflflllfl llllll l l fm Patented on. 11.4, i924.

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JENS A. PAASCEE, (NF CHIGAGQ, ILLIiNQIS.

PNEUMATIC SPRAYING DEVICE.

Application filed June 2, 1919 Serial No. 801,161. Renewed March 22, 1928.

To all whom it may concern:

Be it known that I, Jens A. PAASCHE, a

cago, in the county of Cook and State of Tl1i nois, have invented certain new and useful Improvements in Pneumatic Spraying Devices, of which the following is a specification.

This invention relates to the art of pneumatically spraying coating materials, as, for example, paints, varnishes, bronzes or other liquid or powder materials and the invention refers to an elongated handle or stad for supporting a spraying device, and to means whereby the spraying device may be operated from the lower end of the handle or staff so that the spray may be directed to points above or beyond the reach of the operator. I

One object of the invention is to produce a structure of this character in which the spraying device may be mounted in any one of a plurality of different positions with re lation to the handle or stafi' and in which the operating means may be quickly and conveniently, set to operate the spraying device in any one of its extreme or intermediate positions.

In the use of devices of this character at the end of such a staff, the tubes conducting air and paint to the brush are apt to become entangled and get in the way of the operator. Another object of the invention is to provide means for conducting the air and paint through the interior of the operating stafi so that the only tubes necessary are those leading to the bottom of the stafi' which will not make the stafi unwieldy or cumbersome or be so likely to become tangled.

Further objects and advantages of my invention will become apparent as the description proceeds.

In the accompanying drawings Figure l' is a side elevation illustrating a pneumatic g paint brush and a supporting and operating device therefor embodying my invention. Fi 2 is a side elevational view of the brush and the upper portion of the supporting and operating means, showing the brush occupying a position approximately at right angles to the position shown in Fig. 1. Fig. 3 is a view of the operating Stan in longitudinal section, showing the air and paint conducting devices ezrtending within it, the lower half or the figure being rotated.

herein described in detail.

through a right angle with respect to the upper half. Fig. 4 is a view of the upper portion of Fig. 3 on the line 4-4: showing the arrangement of the connections at the upper ends of the air and paint tubes. Fig. 5 is a detail view of the telesco ic connection between the lower handle an, the rocker arm on the top of the stall. Fig. 6 is a sec tion on line 66 of Fig. 1 showing the clam and adjustable mounting of the brush an the mountin of an arm for controlling the operating trigger on the brush. Fig. 7 is a section on line 77 of Fig. l showin the lower operating lever. Fig. 8 is a side e eva tion of the parts shown in Fig. 7.

The spraying device which I have herein shown by way of example is of the well known type shown in my Patent No. 1,273,- 784, issued July 23,1918, and need not be Briefly, the brush comprises a body 10 having on its forward end an air nozzle 11 which is suitably connected to an air supplying conduit 12 attached to the rear end of said body, as by a fitting 13. The paint discharging nozzle is designated M and is supplied by a suitable conduit. 15 connected to a source of paint supply. The flow of air is controlled by means of a trigger it, and the discharge of paint is governed by a trigger it, each of which is piitotally mounted on the brush, the trigger 17 being ositioned behind the trigger 16 so as to engaged and swung .by the latter. The body 10 is in the present instance mounted upon a handle 18 which projects downwardly at right angles to the body. When detached from the supporting and operating means embodying the present invention, the brush is intended to be held in the operators hand by means of the handle 18 in the manner of a pistol, the trigger it being operated by the forefinger.

The supporting and operating means embodying my invention comprises an elonated handle or stall 19 which is preferably of tubular term and which in the resent instance has a bifurcated head 26 xed to its upper end. Between the sides of this head is mounted the base 21 of a pin 22 which enters a socket in the lower end of the hanv dle l8 and is secured therein by means such as a set screw 23 in the handle 18. The pin 22 is pivotally secured to the head 20 by means of a pivot bolt 24: passing through the head and the base 21 of said pin. The pivot bolt 24% has a squared portion 25 to lzeep it 9 through a suitable housing or guide 42 pro- Cit from turning, and a nut 26 threaded thereon which is suitably constructed to be easily turned by the fingers as by providing a handle 27 for'the nut, so that the parts through which the bolt passes may be easily clamped together. I x

A lower operating lever 28 is provided near the lower end of the stafilcomprisin'g a handle 29 and a; pair of arms 30 curved out around the staff 19 as shown in Fig. 7, and in again to lie on either side of a lug 31 projecting from the staff. The arms 30 are pivoted at their ends to the end of the lug 31, and. the lever 28 is guided for rotation in a vertical plane by the faces of the lug engaging the faces of the arms 30. Suitable means r transmitting motion from the lower operating lever to the trigger 16 on the brush comprises a rocker arm 32 pivotally mounted on an enlarged circular portion 33 (see Fig. 6) of the bolt 24 and carrying a pivotally connected link 34 which has a hooked end to engage in an aperture in the trigger 16 of the paint brush. A washer 35 with a square hole, spaces the enlargement 33 of the bolt 24 from the head 20 and takes the strain imposed by tightening the nut 26, by engaging the face of the enlargement, leaving the rocker arm 32 loosely held for free pivotal movement.

A lateral projection 36 of the arm 32 carries a pivotally connected downwardly extending tub 37 telescopically engaging a rod 38 pivotally connected at 39 to the lower operating lever. A suitable clamp comprising a block 40 at the lower end of the tube 37 formed to receive a set screw 41 is adapted to engage the rod 38 to clamp it firmly in adjusted position. The rod 38 passes jecting from the staff 19, and a tension spring 43 coiled around the rod and attached at its lower end thereto has its upper end coiled around the stem' of the guide. The spring 43 operates to hold the lower operating lever in its upper position, with the air and paint valves in the'brush closed.

In use the paint brush may be positioned on the staff 19 with the body of the brush extending in a horizontal direction as in Fig. 1, when it is desired to spray or paint vertical surfaces above or beyond the operators reach. When coating horizontal surfaces, as, for example, ceilings of rooms, it 1 s more convenient to have the body of the paint brush extend in a vertical direction as seen in Fig. 2. The paint brush may be set in any desired position between or beyond the two positions illustrated in the drawing. When it is desired to change the 'position of the brush with respect to the staff 19, the set screw 41 is loosened and the brush 1s then moved Ebout the bolt 24 as a pivot into the desired position, the tube. 37 and rod 38 sliding with respect to each other down on the lever'28 the to accommodate the changed position of the arm 32 and link 34. The set screw 41 is then tightened to secure the tube and rod together, whereupon the brush is ready for operation in the new position. By drawing parts 37, 32 and 34 are moved to operate the trigger 16 and therethrough the trigger 17. so as to cause air and paint to be discharged from the brush in the form of a spray.

The paint conduit 15 comprises a flexible section of suitable length extending from fitting 44 on the paint nozzle 14 to fitting 45 (see Fig. 4) on the end of a short tube 46 projecting from the stall 19 near its up 1' end. A suitable set of elbows and tu s comprising an upper. elbow 47, a tube 48, a lower elbow 49, a laterally projecting tube 50 near the bottom of the shaft and a suitable terminal fitting 51, receives paint through a suitable valve 52 carrying a fitting 53 adapted to receive paint from any convenient source of supply.

'While a similar set'of. connections may be used for the air suppl I refer to make the tube 19 hollow ant? duct the air up the tube itself. A short tube 54 carries a fitting 55'to receive the air supply tube (not shown) and communicates with the interior of the stafl; Near the top a similar tube 56 carries a fitting 57 for connection with the flexible tube 12. The flexible tubes 12 and 15 are of suflicient length to permit adjustment of the brush from one extreme position to the other. The fittings 55 and 51 at the bottom of the staff 19 for the air and paint tubes are interchangeable with those on the brush, so that in using the brush air tight and conalone the supply tubes can be disconnected,-

' from the bottom of the staff and connected directly to the brush.

The structure shown in the drawings is only one of various possible embodiments of my invention and I therefore do not limit myselfto the presentdisclosure, but aim to cover in the appended claims'all modifications and equivalents falling within the lever pivoted on said handle near the lower.

part of the latter, and a connection between and contractible parts arrang to be fixed together in diflerent positions to change the length of said connection.

said lever and said arm havin extensible 2. The combination of a pneumaticpaint brush having a controlling trigger, an elongated handle, a device pivoted to the upper end of said handle and. constituting a support for said paint brush allowing the brush to be adjusted to diiferent angles with respect to said handle, an arm pivotally mounted on the upper end of said handle, a link connecting said arm to said controlling trigger of the brush, a manually operable lever pivoted to said handle near the lower portion of the latter, a spring tending to draw said lever upwardly, means connectin said lever to said arm and comprising to escoping sections, and means for clamping said sections together in different positions to change the length of said means to accommodate the difierent positions of the paint brush and arm.

3. In combination, a pneumatic spraying device, an elongated handle, means at the upper end of said handle for. supporting said device in different angular positions with respect to said handle, an operating means mounted on said handle and allowing the spraying device to be operated from the lower portion of the handle, said operating means being shiftable to conform to an one of various positions of the spraying evice with respect to the handle. a

4. In combination, a pneumatid spraying device, an elongated handle, means at the upper end of said handle for supporting said spraying device in diflerent angular positions with respect to said handle, and means mounted on said handle for operating the spraying device from the lower portion of the handle, said means including an extensible and contractible link to accpmm'odate the operating means to any position of the spraying device.

5. In combination, a pneumatic spraying device, an elongated handle on which the device is mounted for movement into different positions a manuall operable part at the lower portion of sai handle, means at the upper portion of said-handle connected to the controlling part of the spraying device, and an extensible and contractible link means connecting the last mentioned :means to the said manually operable part.

6. In combi ation, a pneumatic spraying device, an elo gated handle on which said device is mounted for movement into different relative positions, and means carried by the handle for operating said spraying device, said operating means being constructed toconform to the movements ofv the spraying device in any of its extreme or intermediate positions.

7. A pneumatic spraying device having, in combination, an elongated stalf, a pneumatic paint brush having a control trigger,; the brush being mounted for pivotal adjust" ment on the upper end of said stall, a rocker arm independently mounted for pivotal movement" around the same axis as the brush, and an operative connection between said rockerarm and the control trigger for the brush.

8. A pneumatic spraying device having, in combination, an elo ated stafi', a pneumatic paint brushhavmg a control trigger, the brush being mounted for pivotal adjustment on the upper end of said staff, a rocker arm independently mounted for pivotal move ment around the same axis as the brush, and an operative connection between said rocker arm and the control trigger for the brush, an operating lever on the lower end of said stafi, and operative connection between said lower operating lever and said rocker arm.

9. 'A. pneumatic spraying device having, in comblnation, a pneumatic brush, an elongated staff carryin said brush, and air and paint conduits lea from the lower part of the said stafi' to said brush and extending for the most part within said stall.

10. A pneumatic spraying device having, in comblnation, a pneumatic brush, an elongated stafi' ca ing said brush,,a paint tube extending wit in said elongated stall and having terminals projecting therefrom near the upper-and lower ends thereof, and a conduit extending from the upper terminal of said paint tube for connection with said brush. 7

11. In a pneumatic spraying device, an elongated stafi' adapted to support a pneumatic brush, and a tube extending within said staff and having fittings at the ends thereof.

12. A pneumatic spraying device having,

13. The combination recited in claim 12 i in combination with a paint tube extending within said elongated stafi and having terminals projectin therefrom at the upper "and lower ends t ereof.

end of said stafi, a pivot at a point laterally spaced from said stafl, said levercomprisin a handle extending away from said sta on the opposite side thereof from said pivot,

and means extending from said handle around said staii for operative connection with said pivot.

16. The combination recited in claim 15 operative position.

' 18. In a device of the class described, in combination, a pneumatic brush adapted to be held in the hand of the operator, an.

' elon ated staff, and means for mounting said brus adjustably on one end of said staff. 19. In a device of the class described, a pneumatic brush having fittings for the reception of air and paint conduits and capable of operation when held in the hand of p .the operator, an elongated stafl', means for mountin saidbrush on the. upper end of said sta and means associated with said a staff for conveying air and paint to said brush.

20. In a device of the class described, a pneumatic brush, fittings carried by said brush for the reception of air and paint conduits, an elongated staff, and fittin s carried by said staff for the reception of air and paint conduits the fittings on said brush and on said staif bein duplicates whereby said brush may be use either with or with- I out said staff.

" pneumatic brush havin 21. In a pneumatic painting outfit, a means for mixing gas andliquid and ejectm them in the form of a spray, an elongate staff, means for mounting said brush on one end of said staff and means for conve ing as and liquid to said brush inside sai sta said means including a tube within said staff connected at'its opposite ends to a' source of supply and to the brush, the stafl itself serving as a conduit for conveying the other substance to the brush, and means for manual control of the brush either when mounted on the end of the staff or when held in the hand of the operator.

and liquid and ejecting them in the form of a spray, gas and liquid control elements carried by said brush, an elongated staff, means for mounting said brush on one end of said staff, and means for manual control of the brushwhen mounted on the end of the stafi comprising a mechanical control transmission extending along the stall.

24. In a pneumatic painting outfit, a pneumatic brush having means for mixing gas and liquid and ejecting them in the form of a spray, an elongated stafi, means for mounting said brush on one end of said staff, and means for manual control of the brush either when mounted on the end of the stall? or when held in the hand of the operator.

' 25. In a plneumatic painting outfit, a pneumatic brus having means for mixing gas and liquid and ejecting them in the form of a spray, an elongated staff, means for mounting said brush on one end of said staff and means for conveying gas and liquid to said brush inside said stafl, said means including a tube within said staff connected at its opposite ends to a source of supply and to the brush, the staff itself serving as ,a conduit for conveying the other substance to the brush. f v

26. A pneumatic paint brush having air and paint discharge means and controlling means therefor, in combination with an elongated staff upon which the brush is .end thereof, and means mounted on the staff for connecting said member to said controlling means for operating the latter.

27. A. pneumatic paint brush having air and paint dischar e means at its forward end, a perpendicu ar' handle, and trigger lever means located forwardly of said handle and arranged to control the discharge of air and paint, in combination with an elongated stafi secured to said handle, and manually operable meanscarried by said staff and associated with said trigger lever means for operating the latter. 28. A pneumatic paint brush having air and paint discharge means at its forward end, a perpendicular handle, and trigger lever means located forwardly of said handle and arranged to control the discharge "of air and paint, in combination with an elongated stafi secured to said handle, a hand lever mounted on said staff adjacent to thelower end thereof, a device engaging said trigger lever means, and a link connection between said hand lever and said device for operating said trigger lever means. 1

29. A pneumatic paint brush having, in combinatidn, a body, a perpendicular handle thereon, a controlling means, a staif attached to said handle, means. forming anranger adjustable joint which permits the brush to be positioned on the stafi with the handle in alinement with the staif or with the handle perpendicular to the stafi, and means mounted on the stafi" for actuating the controlling means of the brush in either position.

30 A pneumatic paint brush having, in combination, a brush proper, a controlling means therefor, a tubular staff upon which the brush is mounted, a manually operable device mounted on said staff, and means for connecting said device to the controlling means of the brush including two devices pivoted on the staif and link means connecting said devices.

31. A device for supporting a pneumatic sprayer comprising, in combination, a tubular staff, a pair of fittings mounted on and communicating with the interior of said stafl and adapted for attachment to conduits communicating with a source of sup pl and. with said sprayer. respectively, a tu e within said staif, and-a pair of fittings communicating with said tube and adapted for connection to conduits leading respectively to a source of supply and to the sprayer.

32. A supporting device of the character described comprising, in combination, an elongated staff having at its upper end means for adjustably supporting a sprayer, said staii comprising two tubes each of which has means'at its upper and. lower ends for connection to the sprayer and a source of supply respectively.

33. A pneumatic spraying outfit having,

in combination, a pneumatic sprayer, two tubes for supplying gas and liquid to said sprayer, one of said tubes being rigid and being provided with means on its end to attach or adjustably support said sprayer, and the other tube being mounted on the first tube to be carried thereby.

34. A complete pneumatic spraying implement adapted to be held in the operators hand and having digitally operated means for controlling the discharge from the sprayer, in combination with an elongated stafi having means on one end for detachably mounting said sprayer, and operating means extending along the stafl and\adapted for connection at one end to said digitally operated means of said sprayer, said operatin means having manually operable contro means at its other end.

35. A pneumatic spraying device having, in combination, a sprayer, an elongated staff at one end of which said sprayer is mounted, and means for controlling the discharge from said sprayer, said means extending along the staff and being operable from the lower end of the staff, said sprayer being adjustably mounted upon the staii so that it may be directed to discharge its spray at varying angles in relation to the staff, and said controlling means being adjustable to accommodate the varying angular positions of said sprayer.

In testimony whereof, I have hereunto set my hand.

JENS A. PAASCHE.- 

